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If the photo cell was on during the short circuit then the chances of damage to the photo cell are at a minimum. If the short circuit occurred when the photo cell was operated then yes damage to the internal contacts of the photo cell could have happened. What happens is, the short circuit is downstream from the photo cell and when the contacts of the relay close in the photo cell the dead short is applied to the contact faces of the relay. This is somewhat like striking an arc with a welded with the same results, the contact faces weld close and the circuits breaker trips to open the short circuit. With the pole faces of the photo cell's relay closed it gives the illusion that the photo cell is not operating. The photo cell's circuitry will be working but the relay will not drop the circuit open because of the welded contact in the relay.
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What is dark current in photo diode?
yo mamas ass
Why photodiode is reverse biased?
In a photo-diode when light is incident, the fractional increase in the majority carriers is much less than the fractional increase in the minority carriers. Consequently, the fractional change due to the photo-effects on the minority carrier dominated reverse bias current is more easily measurable than the fractional change due to the photo-effects on the majority carrier dominated forward bias current. Hence, photo-diodes are preferred to be used in the reverse bias condition to easily observe the variation of current with intensity.
How do you use ir led?
IR LED will be having connecting leads same as ordinary LED. When ever we use IR LED, which works like a transmitter we have to connect a photo diode as a receiver (very near to IR LED). So as we know IR LED keeps on emitting IR radiations photo diode will keeps on receiving, it in a reflecting surface. In case if the surface not reflect IR radiation(Black surface obsorbs IR). the input to the photo diode becomes nil, and photo diode wont work and hence the circuit. inform.mayaprasad@gmail.com
What is the function of a capacitor in a fluorescent light fitting?
A capacitor is used to improve the power factor of the lamp.More detailsTo prevent the lamp from taking too much current a fluorescent lamp has to have a choke, which has magnetic inductance. The inductance has a negative impact on the power factor of the (the ratio between apparent power and real power taken by the lamp) - i.e. the power factor is reduced - so a capacitor is used to compensate for the inductance by improving the power factor so that it is closer to the ideal value of 1.Basically the inductor with the capacitor smooths out the voltage or current.
What type of material used in circuit boards?
Printed circuit board prototypes can be made from different materials depending on which person created the prototype. One example on Pic Projects describes a prototype made from photo resist boards, art film, UV light boxes, and other materials.
Which current is the leakage current that flows through a photo diode with no input in a light detector?
leakage current itself
Does electric current remain constant in a circuit?
No it depends on voltage and circuit resistance and other physical parameter which affect the properties of component used in circuitry like - temperature pressure humidity light(in light sensitive circuit- LDR photo diode,photo transistor,) and other.
What do you call a variable resistor that is set up to alter the size of the current in a circuit?
A thermister is a device that changes resistance depending on temperature. A photo resistor changes resistance based on light. Both of these could be used with an amplifying circuit to vary current flow.
Electrons ejected in the photoelectric effect are called?
Photo electrons. So current due to these photo electrons is named as photo electric current.
How does an electric current produce light?
By heating a metal wire called a filament. In a light bulb (lamp) the electric current flows through a tungsten filament which glows white hot giving off light.
What are some types of hair damage?
There are five main hair damage: medical damage photo chemical damage chemical damage thermal damage systemic damage
How to turn off a circuit with photodiode?
with a simple led and photo diode
Is there a current photo of tom netherton?
yes
Where can you get a current photo of old boyfriend?
myspace, if he has one
How do you add a photo to your question?
That is impossible with the current software.
How are integranted circuit produced?
by doping a silicon chipIt is more physics then electronics involved basically a map is projected of a significant size whereby the flow of current can be controlled . when down it is significantly reduce in size for productionANS2:The circuit is drawn and its image is projected onto a silicon chip that is set up with a photo-resist coating. The etching that is produced is the integrated circuit.
What does a photo-lithography operator do?
A photo-lithography operator works with integrated circuits. Photo-lithography uses optical erosion to make an integrated circuit. Examples of photo-lithography includes X-ray, electron beam, and immersion lithography.
